I don't know how much this will work to prevent that update. But if you have Windows 10 Pro edition then you can do what this guy says;
[youtube]https://www.youtube.com/watch?v=m-bmRe0VEeQ[/youtube]
How To Stop Windows 10 From Automatically Downloading & Installing Updates
I must say that it feels really weird me preventing the update. I've never had to do this on ANY windows machine (or any computer) that I've had in the past.
I could live with having to sort out shortcut links to programs, but when its messing with the usb setup I can't afford it.